If looks are anything to go by, you would hear only Metallica being played on the Xboom. But looks can be deceiving and this system works well even when you are listening to the soul stirring voice of Katherine Jenkins or the wizardry of A R Rahman. In fact, there is an India preset on the equaliser. The sound is a bit partial to bass, but you can tweak that if needed. At the highs, we noticed a bit of vibration in the speakers. This is very rare though, and limited to some types of music. The bass, too, can be a bit flat here and there, not really pushing the limits. But this can be remedied with the Bass Blast option. Overall, we thought the XBoom performed well across the frequency spectrum.